Improvement in cultivators



PATENTED PEB. 5, 1851.

S. DWGHT. GULTIVATOBP w m n UNITED STATES PATENT OFFICE.

SOLOMON DWIGHT, OF BYRON, ILLINOIS.

IMPROVEMENT IN QULTI'VATORS.

Specification forming part of Letters Patent No. 31,305, dated February 5, 186,1.

cultivation of corn; and my invention consists in certain novel features of construction in the apparatus, as willbe hereinafter fully described. 'lo enable those skilled in the art to make Tand use my invention, I will proceed to describe the construction and operation :"of my improved cnltivator, referring by letters to the accompanying drawings, forming part of this specification, and in which- Figure l'isaperspectiveview of myimproved machine. Fig. 2 is a side elevation of the same. Fig. 3`is a rear elevation of the same. Fig 4 is a vertical longitudinal section at the line w w of Fig. 3. Fig. 5 is a detached view, inperspective,ot' one of rthe shields, (to be referred to particularly herenafter;) and Fig. 6 is a v iew showing in perspective each of the cultivating-teeth. A l

In the diii'erent figures the same letter indi# cates the same part of the apparatus.

A is the main horizontal frame, which is formed out of the same piece of timber as the tongue B in' the following manner, viz: A beam of suitable material and proper size is shaped during one half its length suitably t0 form the tongue B. The other half is sa'wed.

down and bent or lstraddled arounda wedgeshaped piece, D, the timber being bound atl the' point where the bifurcation commences by Va band of metal, C. yThe sides of arms of the frame A, after being bent round the piece D,

(to which they are bolted,) are braced together by a cross-tie, B, secured at each end to the frame A by bolts n n. (See Fig. 1.) To the rear surface of this cross-tie H are bolted the vertical standards G G, which carry the rear cultivating-blades, J, while to the rearextremities of the frame-piece A are secured the standards E E, which carry the outer blades, K K, and the top ends of which are formed into the operators handles e e. The said standards E E are braced by a cross-piece, F, suitably secured at each end to said standards by bolts.

I I are two adjustable and removable shields, which are hung by their arms t i to the inner surface of the frame A and standards Gr in such manner as to be readily adjustable and removable, as will be presently more particularly explained.

The standards E and G are braced to frame A by rods f and g.

On the rear side of the wedged-shaped piece D is arranged a strap, l, which is held by a bolt-rod, a, passing vertically through said piece E, and to which strap the single-tree attach ment for the team may be attached, whereby the draft is brought into the most desirable line.'

Itwill be observed that in the npperend of eachot' the arms t' of the shields I there are formed two holes, l and 2, (see Fig. 5,) the object of whichis to admit-of shifting the bolt which passes through either ot' said holes from one to the other to raise or lower the position of the shield I as circumstances may require.

In the cross-piece H, to which the standards Gr are secured, are formed two sets of holes. The said standards G are represented as bolted into one set of holes. The other set are marked land 2. The object ot' this series ot holes is to shift the position laterally of the standards G, to place them nearer together or farther apart, according to the condition of the corn being cultivated;

The cross-tieH is curved or arched out on its lower edge to allow it to pass freely over the tops of the stalks, which the machine straddles.

The general operation of my improved apparatus may be thus explained: The team being hitchedin, and the inner teeth, J J, being adj usted to the proper distance apart, (by means of the adjustable standards" E,) and the shields I being set to the proper height to suit the condition of the corn, the .operator grasps thehandles e, vamd-governs the machine in theusual'manner. The teeth `J and K, acting combinedly, perfectly loosenand throw up around the roots of the stalks of corn the disintegrated particles of earth, while the shields act effectnally to preventthe earth from smothering the plants.

It will be understood that my improved 2 emacs corn-cultivator may be employed to cultivate other plants, and that the shields I may under some conditions of use of the machine be entirely removed by simply taking out the bolts -Which secure the arms z' i in the means already described.

The adjustment of the inner teeth or shares, J J, in the manner already explained, is of great utility, since it enables the operator to set the said teeth as near to or far from the stalks as their condition and growth require.

It will be seen that by taking a single piecel of wood possessing suicient elasticity and forming the main horizontal frame all of it, as

described, the construction of the apparatus4 is rendered exceedingly simple, and at the same time .very durable and strong.

Hav-ing described the construction and operation of lnyimproved cultivator, what Iclaim therein as new, and desire to secure by Letters Patent, is

The arrangement of the main frameI A and tongue B of a single piece of timber, in combination with the retainingstrap O, shapingblock D, crossbrace H, and standards E, the

'Whole arrangedrand operating -as specified, for 

